MainActivity.kt

class MainActivity: AppCompatActivity() {

    private var lensFacing = CameraX.LensFacing.BACK
    private val TAG = "MainActivity"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        view_finder.post { startCamera() }
        
        }
    }
}